- Set modal width to consistent 48rem for both upgrade states
- Remove max-width constraint from progress stepper
- Add dev mode with Simulate button for local testing
- Simulate cycles through all upgrade steps with 2-second delays
- Fix null-safe operator on currentTeam() call in Upgrade.php
- Add --rm flag to docker run in upgrade.sh for cleanup consistency
- Store beforeunload handler as named reference and clean up on success
- Add clarifying comments for upgrade method calls
- Add error state handling with close option in upgrade modal
- Add step mapping documentation comment in upgrade-progress component
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add step-by-step progress indicator (Preparing → Helper → Image → Restart)
- Display elapsed time during upgrade (MM:SS format)
- Show version transition in header (v4.0.0-beta.454 → v4.0.0-beta.456)
- Add expandable changelog preview before upgrading
- Reduce reload delay from 5s to 3s with countdown timer
- Add "Reload Now" button to skip countdown
- Improve status messages with step-specific descriptions
- Add success state with clear indication when upgrade completes
- Create new upgrade-progress component for visual step tracking
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
